- 11 March 2006
- Reaction score
Drawing (before rendered) was a Boeing submission to develop a vortex-flap?? for a fighter type aircraft.
Would like to know what a vortex flap is myself, could it be flaps on the wingtips? IIRC, the X-70 Valkyrie had wingtip flaps for supersonic cruise.
No chance. It's very old stuff from 80s.avatar said:okay .. might sound over speculative or even silly ... but could this be the starting point for Boeing's so called sixth generation fighter?
Hi! Northrop P-900.Does anyone know if that was work by Bud Nelson while he was at Boeing or if they were designed after he went to Northrop? The first design above sure looks like the iteration between his micro-fighter for the 747 carrier and his P-900 at Northrop.
Remember that Withold Kasper worked for Boeing after he left Poland and Canada. Leading edge vortex flaps were a prominent part of his BKB sailplane. He also installed a vortex flap near the trailing edge to generate a second vortex.amsci,
The vortex flaps are the leading edge devices visible in the drawing. Vortex flaps create low pressure lift by producing a stable vortex above the flap.
and here is a file about this Boeing Fighter Project,and they called it LES-213,and the
initial vehicle utilized a wing planform similar to the NASA SCAT-15F is called LES-210,
also the NASA SCIF-4 and SCIF-5.
Aerodynamic Analysis of Supersonic Aircraft with Subsonic Leading Edges